66452951 has 2 divisors, whose sum is σ = 66452952. Its totient is φ = 66452950.

The previous prime is 66452909. The next prime is 66452959. The reversal of 66452951 is 15925466.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66452951 - 2⁶ = 66452887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66452959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33226475 + 33226476.

It is an arithmetic number, because the mean of its divisors is an integer number (33226476).

Almost surely, 2^66452951 is an apocalyptic number.

66452951 is a deficient number, since it is larger than the sum of its proper divisors (1).

66452951 is an equidigital number, since it uses as much as digits as its factorization.

66452951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 38.

The square root of 66452951 is about 8151.8679454466. The cubic root of 66452951 is about 405.0463819257.

The spelling of 66452951 in words is "sixty-six million, four hundred fifty-two thousand, nine hundred fifty-one".